:root {
  color-scheme: dark;
  --bg: #050008;
  --bg-2: #090012;
  --panel: rgba(18, 8, 32, 0.92);
  --panel-2: rgba(6, 24, 31, 0.84);
  --text: #f7efff;
  --muted: #c7b8dc;
  --accent: #21f4e6;
  --accent-2: #b45cff;
  --accent-3: #ff4fd8;
  --success: #7dffb2;
  --warning: #ffd166;
  --danger: #ff6b8a;
  --border: rgba(255, 255, 255, 0.14);
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.48);
}

body.focus-mode {
  --panel: rgba(8, 8, 13, 0.96);
  --panel-2: rgba(12, 12, 18, 0.92);
  --muted: #d3d3dd;
}

* { box-sizing: border-box; }

/* Compass Infrastructure boot splash */
.portal-splash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: #172025;
  transition: opacity .42s ease, visibility .42s ease;
}

.portal-splash--hide {
  opacity: 0;
  visibility: hidden;
}

.portal-splash-logo {
  width: min(82vw, 520px);
  height: auto;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 24px 70px rgba(0,0,0,.55));
}

@media (max-width: 520px) {
  .portal-splash-logo { width: min(88vw, 360px); }
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(180, 92, 255, 0.36), transparent 34rem),
    radial-gradient(circle at top right, rgba(33, 244, 230, 0.20), transparent 28rem),
    radial-gradient(circle at bottom left, rgba(255, 79, 216, 0.14), transparent 34rem),
    linear-gradient(145deg, var(--bg), var(--bg-2));
  color: var(--text);
}

.app-shell {
  width: min(1040px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0;
}

.hero { margin-bottom: 24px; }
.brand-row { display: flex; align-items: center; gap: 18px; }
.logo-mark {
  display: grid;
  place-items: center;
  width: 72px;
  height: 72px;
  border-radius: 22px;
  background: linear-gradient(145deg, var(--accent-2), var(--accent), var(--accent-3));
  color: #07000f;
  font-size: 1.45rem;
  font-weight: 950;
  box-shadow: 0 0 38px rgba(33, 244, 230, 0.28);
}

.eyebrow,
.label,
.date-label {
  color: var(--accent);
  font-size: 0.77rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1 {
  margin: 6px 0 8px;
  font-size: clamp(2.25rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.subtitle,
.muted-copy {
  max-width: 800px;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.6;
}

.hero-actions,
.actions,
.quiz-options,
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.mascot-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 18px 0 10px;
}

.mascot {
  width: clamp(86px, 18vw, 132px);
  height: auto;
  border-radius: 28px;
  box-shadow: 0 18px 60px rgba(33, 244, 230, 0.16), 0 0 0 1px rgba(255,255,255,.12);
  animation: robotFloat 4.5s ease-in-out infinite;
}

.mascot-bubble {
  position: relative;
  max-width: 560px;
  padding: 16px 18px;
  border: 1px solid rgba(33, 244, 230, .28);
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(18, 8, 32, .92), rgba(6, 24, 31, .78));
  box-shadow: 0 18px 60px rgba(0,0,0,.28);
}

.mascot-bubble::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 34px;
  width: 16px;
  height: 16px;
  background: rgba(18, 8, 32, .95);
  border-left: 1px solid rgba(33, 244, 230, .28);
  border-bottom: 1px solid rgba(33, 244, 230, .28);
  transform: rotate(45deg);
}

.mascot-bubble p {
  margin: 6px 0 0;
  color: #dffdfa;
  line-height: 1.55;
}

@keyframes robotFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

.card,
.study-tip,
.stat-card,
.tabs {
  background: linear-gradient(145deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.card { padding: clamp(22px, 4vw, 38px); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}

.stat-card { padding: 17px 18px; }
.stat-card strong { display: block; margin-top: 8px; font-size: 1.25rem; }

.tabs {
  display: flex;
  gap: 8px;
  padding: 8px;
  margin-bottom: 16px;
  overflow-x: auto;
}

.tab {
  flex: 1;
  min-width: max-content;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
}
.tab.active {
  background: rgba(33, 244, 230, 0.12);
  color: var(--accent);
  border-color: rgba(33, 244, 230, 0.32);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.card-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 28px;
}

h2 {
  margin: 8px 0 0;
  font-size: clamp(2.1rem, 6vw, 4.4rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
}

.badge {
  border: 1px solid rgba(33, 244, 230, 0.42);
  color: var(--success);
  border-radius: 999px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 0.86rem;
  font-weight: 800;
  background: rgba(33, 244, 230, 0.08);
}

.section-block,
.acronym-block {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  margin-top: 20px;
}

.section-block p,
.acronym-block p,
.quiz-question {
  margin: 8px 0 0;
  font-size: 1.12rem;
  line-height: 1.7;
  color: #efe7ff;
}

.example p { color: #c8fff8; }
.hidden { display: none !important; }

button {
  cursor: pointer;
  border: 0;
  border-radius: 15px;
  padding: 12px 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #07000f;
  font-weight: 850;
}

button:hover { filter: brightness(1.08); transform: translateY(-1px); }
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

button.secondary,
.quiz-options button,
.result-item,
.chip {
  background: rgba(255, 255, 255, 0.045);
  color: var(--text);
  border: 1px solid var(--border);
}

button.success { background: linear-gradient(135deg, var(--success), var(--accent)); }
button.danger { background: linear-gradient(135deg, var(--danger), var(--accent-3)); color: #fff; }
.quiz-options button.correct { border-color: var(--success); color: var(--success); }
.quiz-options button.incorrect { border-color: var(--danger); color: var(--danger); }

.full-panel,
.footer-tip { margin-top: 0; }
.study-tip {
  padding: 24px 26px;
  color: var(--muted);
}

.footer-tip { margin-top: 18px; }
.study-tip h3 { color: var(--text); margin: 0 0 8px; font-size: 1.45rem; }
.study-tip ol,
.feature-list { margin: 0; padding-left: 20px; line-height: 1.75; }

.small-status {
  min-height: 1.4em;
  color: var(--muted);
  font-size: 0.95rem;
  margin: 12px 0 0;
}

.search-label { display: block; margin: 10px 0 8px; color: var(--muted); }

input[type="search"] {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.24);
  color: var(--text);
  padding: 14px;
  font-size: 1rem;
  outline: none;
}
input[type="search"]:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(33, 244, 230, 0.10); }

.search-results { display: grid; gap: 10px; margin-top: 14px; max-height: 420px; overflow: auto; }
.result-item { width: 100%; text-align: left; border-radius: 16px; padding: 12px; }
.result-item span { display: block; color: var(--muted); font-size: 0.9rem; margin-top: 4px; }
.result-item .mini-row { color: var(--accent); font-size: 0.82rem; margin-top: 6px; }
.path-grid,
.dashboard-grid,
.achievement-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}
.path-card,
.dashboard-card,
.achievement {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px;
}
.path-card strong,
.dashboard-card strong,
.achievement strong { color: var(--text); display: block; margin-bottom: 6px; }
.progress-bar {
  height: 9px;
  background: rgba(255,255,255,.08);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 10px;
}
.progress-bar span {
  display: block;
  height: 100%;
  width: var(--value, 0%);
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.achievement.locked { opacity: .55; }
.achievement.unlocked { border-color: rgba(125,255,178,.45); }

.chip { border-radius: 999px; padding: 8px 12px; color: var(--muted); }
.chip.active { color: var(--accent); border-color: rgba(33, 244, 230, 0.5); }

.flashcard {
  width: 100%;
  min-height: 260px;
  display: grid;
  place-items: center;
  gap: 12px;
  text-align: center;
  margin-top: 18px;
  border: 1px solid rgba(180, 92, 255, 0.38);
  background:
    linear-gradient(145deg, rgba(180, 92, 255, 0.22), rgba(33, 244, 230, 0.12)),
    rgba(255, 255, 255, 0.04);
  color: var(--text);
}
.flashcard strong { display: block; font-size: clamp(2rem, 8vw, 4.4rem); line-height: 1; }
.flashcard span:last-child { color: var(--muted); max-width: 720px; line-height: 1.6; }
.compact-actions { margin-top: 18px; }

@media (max-width: 820px) {
  .app-shell { padding: 26px 0; }
  .brand-row { align-items: flex-start; }
  .logo-mark { width: 58px; height: 58px; border-radius: 18px; }
  .card-header { flex-direction: column; }
  .badge { white-space: normal; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .tabs { border-radius: 20px; }
  .path-grid,
  .dashboard-grid,
  .achievement-list { grid-template-columns: 1fr; }
  button { flex: 1; }
}

@media (max-width: 460px) {
  .stats-grid { grid-template-columns: 1fr; }
  .brand-row { flex-direction: column; }
  .mascot-strip { align-items: flex-start; }
  .mascot-bubble::before { display: none; }
}

.onboarding-panel,
.learning-note,
.interview-card {
  background: linear-gradient(145deg, rgba(18,8,32,.94), rgba(6,24,31,.82));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 18px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.onboarding-grid,
.settings-grid,
.learning-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 14px;
}

.learning-grid { margin-top: 22px; }
.learning-note { margin-bottom: 0; box-shadow: none; }
.learning-note p { color: #eaddff; line-height: 1.6; margin: 8px 0 0; }
.full-width { grid-column: 1 / -1; }

label { color: var(--muted); font-weight: 750; }
select,
textarea {
  width: 100%;
  margin-top: 8px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.24);
  color: var(--text);
  padding: 13px 14px;
  font: inherit;
  outline: none;
}
textarea { resize: vertical; min-height: 130px; }
select:focus,
textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(33,244,230,.10); }

.interview-card p { color: #dffdfa; font-size: 1.1rem; line-height: 1.65; margin: 8px 0 0; }
body.mascot-hidden .mascot-strip { display: none; }

@media (max-width: 760px) {
  .onboarding-grid,
  .settings-grid,
  .learning-grid { grid-template-columns: 1fr; }
}